Tongue-switch.



No. 826,409. PATENTED JULY 17, 1906.

' I. K. DIXON.

TONGUE SWITCH.

APPLICATION FILED JULY 26. 1905.

I WITNESSES g ATTORNEY.

54mm m w ISRAEL K. DIXON, OF JOHNSTOWN, LORAINSTEEL COMPANY, A

Specification of Letters Patent.

PENNSYLVANIA, ASSIGNOR TO THE RPORATION OF PENNSYLVANIA.

TONGUE- SWITCH.

Patented July 17, 1906.

Application filed July 26, 1905. Serial No. 271,290.

accompanying drawings, which form a part.

- of this specification.

My invention has relation to certain new and useful improvements in tongue-switches, and designed to provide a T-rail tongueswitch of simple, novel, and durable construction.

With this object in view my invention consists in the novel construction, arrangement, and combination of parts, all substantially as hereinafter described, and pointed out in the appended claims, reference bein had to the accompanying drawings, in whic Figure 1 is a plan view of a tongue-switch embodying my invention and Figs. 2, 3, and

4, transverse sections taken on the lines 2 2,

3 3, and 4 4, respectively, of Fig. 1.

A designates the main running-in rail at the point end of the switch; B, the main-track running-off rail at the heel end of the switch; C, the branchtrack rail,- D, the guard rail, and E the movable tongue, pivoted at e. The rails O and D are bent outwardly at the points a and (1, respectively, to receive between them a hard-metal filler or chock F, which extends from the point f to the point f and forms the bed and pocket for the point end of the tongue E.

The inner portion of the head of the rail D is cut away at d to receive a raised portion f 2 of the said chock F, whereby the entrance to the point is guarded by harder metal than the metal of the rail. Said chock has a second raised portion f which takes the place of the laterally-displaced and partially-removed head of the rail 0, said portion f at the point of the switch being equal at least to full rail-head width, but gradually becoming narrower back toward the point f, at which point wheel-treads have substantially a full bearing on the tongue E. The greatest wear in a tongue-switch of this character is on those portions where the wheels pass onto and off from the point of the tongue, and these I have protected by the provision of the hard-metal chock F. The bed for the heel portion of the tongue is formed by a separate chock H of the usual character.

The rail C is given a second bend at c, bringing it outside of and alongside of the rail A, its head being slightly planed off, as shown at (2 Fig. 3, to form a bearing or lifting rail for wide-tread wheels.

The several parts of the structure are secured together by means of through-bolts J, and exact fitting together of the parts is dispensed with by a filling K, of spelter or like material. L is a small chock between the rails A and C. i

The construction described avoids the expense of a hard-metal bed for the tongue throughout its length. This is quite an item, as T-rail tongue-switches are usually of long radius, and therefore of considerable length, requiring a long chock which is expensive to make and fit if wholly of hard metal. It is also unnecessary to form the guard-line of the guard-rail and the tread of the branch-track rail of hard metal the full length of the switch, since back of the portions which are formed by the above-described chock there is comparatively little more wear on these parts t an upon an ordinary piece of track. The said chock therefore provides for thelife of the switch at a minimum cost. A further advanta e of the construction is that any worn or efective member of the frog may be readily replaced. I do not wish to limit myself to the precise details of construction which I have herein shown and described, as these maybe varied without departing from my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a tongue-switch, the combination with the guard-rail and the branch-track rail, each bent laterally outward toward the point end of the switch, of the hard-metal filler or chock secured between the said rails and having a raised portion which takes the place of the head of the branch-track rail for a portion of its length.

2. In a tongue-switch, the combination with the guard-rail and the branchtrack rail, each bent laterally outward toward the point end of the switch, of the hard-metal filler or chock secured between the said rails and having a raised portion which replaces a part of the head of the guard-rail at the ap proach to the switch-tongue.

3. In a tongue-switch, the combination with the branch-track rail and the guardrail each bent laterally outward toward the point end of the switch, of the hard-metal filler or chock secured between the said rails and forming-the bed for the point portion of the tongue,- said chock having a raised portion which replaces the head of the branchtrack rail for a portion of its length, and a second raised portion which replaces a portion of the head of the guard-rail for a portion of its length.

4. In a tongue-switch, the combination with the main connecting-rails A and B and the guard-rail D, of the branch-track rail 0 having one end portion extended alongside the said rail B to form a bearing-rail at the point end of the switch 5. In a tongue-switch of the character'de scribed, the combination with the guard-rail and the branch-track rail, of the two chocks F and H secured between the said rails and forming the bed for the tongue, the said chock F, having portions which form portions of the track-surface adjacent to the point portion of the tongue.

In testimony whereof I have afiixed my signature in presence of two witnesses.

ISRAEL K. DIXON.

Witnesses:

LORETTO OCONNELL, H. W. SMITH. 

